Wissam J. Halabi, M.D.

Assistant Clinical Professor

To see if Wissam J. Halabi is accepting new patients, or for assistance finding a UC Davis doctor, please call 800-2-UCDAVIS (800-282-3284).



Colorectal Surgery

Robotic Surgery

Surgery - Robotic



Locations and Contact

Cypress Building- Colon and Rectal Surgery Clinic

2221 Stockton Blvd.
Sacramento, CA 95817

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550 West Ranch View Dr.
Rocklin, CA 95765

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Additional Numbers

Clinic Phone


Clinic Phone


Clinic Fax


Physician Referrals

800-4-UCDAVIS (800-482-3284)

Philosophy of Care

My educational background is diverse. I graduated from the American University of Beirut medical school in Beirut Lebanon. I completed my general surgery training at the University of Texas Medical Branch in Galveston-Texas where I was involved in various aspects of medical students’ education as well as a member of the education sub-committee in GME.

I also possess a strong research background as I spent 2 years in clinical outcomes and database research in colon and rectal surgery at the University of California-Irvine. I did a colon and rectal surgery fellowship at Baylor in Dallas where I gained extensive experience in different aspects of surgical approaches from open to laparoscopic and robotic as well as managing complex colon and rectal patients.

Clinical Interests

Dr. Halabi's clinical interests are key advanced laparoscopic skills: bariatric procedures/revisions, colon resections, inguinal/ventral hernia, complex foregut and bariatric surgery experience: RYGB, sleeve gastrectomy, lap band, revisional bariatric cases. He has an interest in complex abdominal wall reconstruction, such as anterior and posterior component separation and performing robotic complex abdominal wall reconstruction.


Colon and Rectal Surgery

Center/Program Affiliation

UC Davis Medical Group
UC Davis Comprehensive Cancer Center

Undergraduate School

B.S., Biology, American University of Beirut, Beirut, Lebanon 2001

Medical School

M.D., American University of Beirut - School of Medicine, Beirut, Lebanon 2005


General Surgery, American University of Beirut, Beirut, Lebanon 2005-2007


General Surgery, The Mayo Clinic, Phoenix AZ 2009-2011


Colon and Rectal Surgery, Baylor University Medical Center, Dallas TX 2016-2017


Surgery, UC Irvine, Irvine CA 2011-2013

"Sacramento Top Doctors 2018", Sacramento Magazine, December, 2018

Best Research Award- Baylor Health Care System Research Week, 2017

Best Research Paper- Texas Society of Colon and Rectal Surgeons, 2017

Poster of Distinction- American Society of Colon and Rectal Surgeons, 2017

Third Place for best research paper at the Southern California Chapter of the American College, 2013

Chen H, Nguyen KNB, Huang H, Feng C, Zhao X, Daly ME, Rao S, Fragoso R, Valicenti R, Sekhon S, Navarro SM, Kim EJ, Cho M, Tam K, Farkas L, Halabi WJ, Monjazeb AM, Rong Y. Effect and Safety of Radiation Therapy Boost to Extramesorectal Lymph Nodes in Rectal Cancer. Pract Radiat Oncol. 2020 Sep-Oct;10(5):e372-e377. doi:10.1016/j.prro.2019.12.007. Epub 2019 Dec 20. PMID:31866577.

Demisse R, Damle N, Kim E, Gong J, Fakih M, Eng C, Oesterich L, McKenny M, Ji J, Liu J, Louie R, Tam K, Gholami S, Halabi W, Monjazeb A, Dayyani F, Cho M. Neoadjuvant Immunotherapy-Based Systemic Treatment in MMR-Deficient or MSI-High Rectal Cancer: Case Series. J Natl Compr Canc Netw. 2020 Jul;18(7):798-804. doi:10.6004/jnccn.2020.7558. PMID:32634770.

Gahagan JV, Halabi WJ, Nguyen VQ, Carmichael JC, Pigazzi A, Stamos MJ, Mills SD. Colorectal Surgery in Patients with HIV and AIDS: Trends and Outcomes over a 10-Year Period in the USA. J Gastrointest Surg. 2016 Jun;20(6):1239-46. doi:10.1007/s11605-016-3119-x. Epub 2016 Mar 3. PMID:26940943.

Halabi WJ, Jafari MD, Nguyen VQ, Carmichael JC, Mills S, Pigazzi A, Stamos MJ. Ureteral injuries in colorectal surgery: an analysis of trends, outcomes, and risk factors over a 10-year period in the United States. Dis Colon Rectum. 2014 Feb;57(2):179-86. doi:10.1097/DCR.0000000000000033. PMID:24401879.

Jafari MD, Halabi WJ, Stamos MJ, Nguyen VQ, Carmichael JC, Mills SD, Pigazzi A. Surgical outcomes of hyperthermic intraperitoneal chemotherapy: analysis of the american college of surgeons national surgical quality improvement program. JAMA Surg. 2014 Feb;149(2):170-5. doi:10.1001/jamasurg.2013.3640. PMID:24352601.

Jafari MD, Jafari F, Halabi WJ, Nguyen VQ, Pigazzi A, Carmichael JC, Mills SD, Stamos MJ. Colorectal Cancer Resections in the Aging US Population: A Trend Toward Decreasing Rates and Improved Outcomes. JAMA Surg. 2014 Jun;149(6):557-64. doi:10.1001/jamasurg.2013.4930. PMID:24718844.

Halabi WJ, Kang CY, Nguyen VQ, Carmichael JC, Mills S, Stamos MJ, Pigazzi A. Epidural analgesia in laparoscopic colorectal surgery: a nationwide analysis of use and outcomes. JAMA Surg. 2014 Feb;149(2):130-6. doi:10.1001/jamasurg.2013.3186. PMID:24336894.

Halabi WJ, Kang CY, Ketana N, Lafaro KJ, Nguyen VQ, Stamos MJ, Imagawa DK, Demirjian AN. Surgery for gallstone ileus: a nationwide comparison of trends and outcomes. Ann Surg. 2014 Feb;259(2):329-35. doi:10.1097/SLA.0b013e31827eefed. PMID:23295322.

Halabi WJ, Jafari MD, Kang CY, Nguyen VQ, Carmichael JC, Mills S, Pigazzi A, Stamos MJ. Colonic volvulus in the United States: trends, outcomes, and predictors of mortality. Ann Surg. 2014 Feb;259(2):293-301. doi:10.1097/SLA.0b013e31828c88ac. PMID:23511842.

Halabi WJ, Kang CY, Jafari MD, Nguyen VQ, Carmichael JC, Mills S, Stamos MJ, Pigazzi A. Robotic-assisted colorectal surgery in the United States: a nationwide analysis of trends and outcomes. World J Surg. 2013 Dec;37(12):2782-90. doi:10.1007/s00268-013-2024-7. PMID:23564216.